Allow AE Cache and Database to be stored on external media
In the new and the classic Mac Pro the fastest drive possible is a NVME SSD or a RAID of multiple SSDs that is connected via a PCI card such as the "Sonnet M.2 4x4 PCIe Card" or the equivalent from HighPoint.
The problem is that these volumes get recognized as external, removable drives and After Effects will not except them as cache location.
So it's nonsense to restrict the drive selection. Please remove that function and let the user choose. If someone stores his cache on a slow thumb drive it's his own fault.